Chinese main menu: font atlas + GB2312 tables + Strings translation

- build_cjk.py: 2048x1024 UI atlas (original ASCII at 0,0 + full GB2312 at 12px) and
  cjk_glyph/cjk_metric tables.
- cn_strings.py + make_cn_strings.py: escape-aware GB2312 rewrite of Strings.dat (46 entries).
- install_cjk.py: one-shot deploy/restore (exe patch, atlas loose+res, strings).
- apply_cjk.py: fix metrics cave code byte order (was (second<<8)|first) so CJK width
  measures correctly and centred labels are no longer flushed right.
- docs: DEVLOG + patch notes for the atlas and the fix.

README.md

@@ -26,6 +26,10 @@ Working data (not tracked): `original/`, `png/`, `report/`, `patch/`, `crack/`.
 | `tools/fontparse.py`       | parse `Fonts.dat` into font blocks and glyph rects |
 | `tools/add_section.py`     | add an executable section to the game PE |
 | `tools/apply_cjk.py`       | apply the double-byte font-rendering patch |
+| `tools/build_cjk.py`       | build the 2048x1024 UI font atlas + `cjk_glyph`/`cjk_metric` tables |
+| `tools/cn_strings.py`      | simplified-Chinese translation table (`Id` -> text) |
+| `tools/make_cn_strings.py` | patch the `English` column of `Strings.dat` to GB2312 |
+| `tools/install_cjk.py`     | deploy/restore the whole patch into the game folder |
 | `tools/xrefs.py`           | find call/jmp xrefs in the game executable |
 
 See `docs/` for the reverse-engineered formats and addresses.